All data are in degrees Fahrenheit

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Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Fukuoka now

82.9

°F

July 17, 03:57

Trend:

increasing

Yesterday:

82.5°F

Tomorrow:

83.0°F

Sunrise:

05:20

Sunset:

19:29

Day Length:

14 h. 9 min.

Fukuoka in July

Minimum:

57.6°F

Average:

58.9°F

Maximum:

60.4°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 82.9°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 3.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 81.9°F on 2022, while the historical minimum was 74.7°F on 2020.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 83.8°F, with minimum temperature starting at 83.0°F, while the maximum might reach 84.5°F.

Daily water temperature in Fukuoka

Date Current Year

actual* / forecast**

last year 10 years average
Jul 3 75.3°F 79.4°F 76.0°F
Jul 4 74.9°F 81.1°F 76.4°F
Jul 5 74.9°F 81.4°F 76.7°F
Jul 6 76.1°F 82.2°F 77.1°F
Jul 7 76.7°F 81.5°F 77.3°F
Jul 8 77.3°F 82.5°F 77.6°F
Jul 9 78.9°F 82.3°F 77.8°F
Jul 10 79.4°F 83.6°F 78.1°F
Jul 11 79.4°F 82.9°F 78.1°F
Jul 12 82.0°F 82.4°F 78.3°F
Jul 13 81.8°F 81.2°F 78.4°F
Jul 14 82.8°F 80.9°F 78.9°F
Jul 15 82.7°F 79.5°F 79.1°F
Jul 16 82.5°F 80.0°F 78.9°F
Jul 17 82.9°F 79.5°F 79.3°F
Jul 18 83.0°F 79.0°F 79.4°F
Jul 19 83.1°F 78.9°F 79.5°F
Jul 20 83.5°F 79.0°F 79.9°F
Jul 21 83.9°F 80.1°F 80.3°F
Jul 22 84.0°F 81.2°F 80.4°F
Jul 23 84.2°F 82.9°F 80.6°F
Jul 24 84.5°F 83.4°F 80.9°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.
The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.3°F in Spring, 77.9°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kitakyushu 81.4°F 30mi
Shimonoseki 79.3°F 39mi
Kumamoto 83.3°F 57mi
Nagasaki 82.0°F 66mi

* current water temperature in this city

** straight line distance from Fukuoka